I usually mow over an underground bees nest (yellow jackets usually) and have to hop off the mower and run!
Sucks with no safety devices - gotta watch the toes ...
Every so often I'll bump a paper nest with my shoulder while mowing .... great exercise!
i rolled over a nest of lil' yellow buggers while mowing moms lawn last year (no shirt on), i freeking ran like a lil' girl, arms flailing, screaming into the house
(there is absolutely zero chance of standing your ground with 100's of these aggressive buggers on you), whats really messed up is these things remember you and hunt you down like a dog... i clean up my wounds, ice, solarcane, etc. and after an hour or so mom comes and goes to store for some ointment crap no problem... i rest up and recover for a few... go to head out to my truck and whos waiting for me... 100's of bees licking their chops ready to kill me
i run back in house... mom goes to investigate (no problem's, she like just a few friendly bee's flying around)... Im like WTF!
... i get my keys ready in hand and make a mad dash for the truck as fast as i can.... get in it and look out the window to a swarms of these lil' bastards bouncing off my windows! thats just not normal man... idk wtf was going on but seriously was questioning the whole food chain that day, Been paranoid to mow a lawn ever since...